Claim: The standard deviation of pulse rates of adult males is less than 11 bpm. For a random sample of 156 adult males, the pulse rates have a standard deviation of 10.5 bpm. Complete parts (a) and (b) below. a. Express the original claim in symbolic form.

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**Claim:** The standard deviation of pulse rates of adult males is less than 11 bpm. For a random sample of 156 adult males, the pulse rates have a standard deviation of 10.5 bpm. Complete parts (a) and (b) below.

**a. Express the original claim in symbolic form:**

σ < 11 bpm  
(Type an integer or a decimal. Do not round.)

**b. Identify the null and alternative hypotheses:**

H₀: σ = 11 bpm  
H₁: σ < 11 bpm  
(Type integers or decimals. Do not round.)
Transcribed Image Text:**Claim:** The standard deviation of pulse rates of adult males is less than 11 bpm. For a random sample of 156 adult males, the pulse rates have a standard deviation of 10.5 bpm. Complete parts (a) and (b) below. **a. Express the original claim in symbolic form:** σ < 11 bpm (Type an integer or a decimal. Do not round.) **b. Identify the null and alternative hypotheses:** H₀: σ = 11 bpm H₁: σ < 11 bpm (Type integers or decimals. Do not round.)
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